/* The magic number for the Multiboot header. */
#define MULTIBOOT_HEADER_MAGIC          0x1BADB002
     
/* The flags for the Multiboot header. */
#ifdef __ELF__
#	define MULTIBOOT_HEADER_FLAGS         0x00000003
#else
#	define MULTIBOOT_HEADER_FLAGS         0x00010003
#endif

/* The magic number passed by a Multiboot-compliant boot loader. */
#define MULTIBOOT_BOOTLOADER_MAGIC      0x2BADB002

/* The size of our stack (16KB). */
#define STACK_SIZE                      0x4000
     
/* C symbol format. HAVE_ASM_USCORE is defined by configure. */
#ifdef HAVE_ASM_USCORE
#	define EXT_C(sym)                     _ ## sym
#else
#	define EXT_C(sym)                     sym
#endif

#ifndef ASM
/* Do not include here in boot.s. */
     
/* Types. */
     
/* The Multiboot header. */
typedef struct multiboot_header {
	unsigned long magic;
	unsigned long flags;
	unsigned long checksum;
	unsigned long header_addr;
	unsigned long load_addr;
	unsigned long load_end_addr;
	unsigned long bss_end_addr;
	unsigned long entry_addr;
} multiboot_header_t;

/* The symbol table for a.out. */
typedef struct aout_symbol_table {
	unsigned long tabsize;
	unsigned long strsize;
	unsigned long addr;
	unsigned long reserved;
} aout_symbol_table_t;
     
/* The section header table for ELF. */
typedef struct elf_section_header_table {
	unsigned long num;
	unsigned long size;
	unsigned long addr;
	unsigned long shndx;
} elf_section_header_table_t;

/* The Multiboot information. */
typedef struct multiboot_info {
	unsigned long flags;
	unsigned long mem_lower;
	unsigned long mem_upper;
	unsigned long boot_device;
	unsigned long cmdline;
	unsigned long mods_count;
	unsigned long mods_addr;
	union {
		aout_symbol_table_t aout_sym;
		elf_section_header_table_t elf_sec;
	} u;
	unsigned long mmap_length;
	unsigned long mmap_addr;
} multiboot_info_t;
     
/* The module structure. */
typedef struct module {
	unsigned long mod_start;
	unsigned long mod_end;
	unsigned long string;
	unsigned long reserved;
} module_t;
     
/*
 * The memory map. Be careful that the offset 0 is base_addr_low
 *         but no size.
 */
typedef struct memory_map {
	unsigned long size;
	unsigned long base_addr_low;
	unsigned long base_addr_high;
	unsigned long length_low;
	unsigned long length_high;
	unsigned long type;
} memory_map_t;     

#endif /* ! ASM */


